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MT8870DE1 Very Large Scale Integrated Circuits Ics Complete DTMF Receiver
MT8870DE1 Very Large Scale Integrated Circuits Ics Complete DTMF Receiver
Specifications
Brand Name :
MITEL
Model Number :
MT8870DE
Certification :
Original Factory Pack
Place of Origin :
Morocco
MOQ :
100pcs
Price :
Negotiation
Payment Terms :
T/T, Western Union,PayPal
Supply Ability :
6000PCS
Delivery Time :
1 Day
Packaging Details :
please contact me for details
Description :
Telecom IC DTMF Receiver 18-PDIP
DC Power Supply Voltage :
7 V
Voltage on any pin :
VSS-0.3 VDD+0.3 V
Current at any pin (other than supply) :
10 mA
Storage temperature :
-65 +150 °C
Package power dissipation :
500 mW
Crystal/Clock Freq.Tolerance :
±0.1 %
Description

MT8870DE Very Large Scale Integrated Circuits Ics Complete DTMF Receiver

Features

• Complete DTMF Receiver

• Low power consumption

• Internal gain setting amplifier

• Adjustable guard time

• Central office quality

• Power-down mode

• Inhibit mode

• Backward compatible with MT8870C/MT8870C-1

Description

The MT8870D/MT8870D-1 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tonepairs into a 4-bit code. External component count is minimized by on chip provision of a differential input amplifier, clock oscillator and latched three-state bus interface.

Applications

• Receiver system for British Telecom (BT) or CEPT Spec (MT8870D-1)

• Paging systems

• Repeater systems/mobile radio

• Credit card systems

• Remote control

• Personal computers

• Telephone answering machine

Figure 1 - Functional Block Diagram

Figure 2 - Pin Connections

Functional Description​

The MT8870D/MT8870D-1 monolithic DTMF receiver

offers small size, low power consumption and high

performance. Its architecture consists of a bandsplit

filter section, which separates the high and low group

tones, followed by a digital counting section which

verifies the frequency and duration of the received

tones before passing the corresponding code to the output bus.

Product tags

sfp 10gbase t module

,

rf module datasheet

,

western digital external 1tb
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MT8870DE1 Very Large Scale Integrated Circuits Ics Complete DTMF Receiver

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Product Detail
Brand Name :
MITEL
Model Number :
MT8870DE
Certification :
Original Factory Pack
Place of Origin :
Morocco
MOQ :
100pcs
Price :
Negotiation
Contact Supplier
MT8870DE1 Very Large Scale Integrated Circuits Ics Complete DTMF Receiver

ChongMing Group (HK) Int'l Co., Ltd

Active Member
3 Years
shenzhen
Since 2008
Business Type :
Distributor/Wholesaler
Main Products :
Flash Memory IC Chip, Programmable IC Chip, Computer IC Chips
Total Annual :
5000000-7000000
Employee Number :
80~100
Certification Level :
Active Member
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